You will need to provide evidence that the accessory apartment was approved prior to 1997. For more information, see the following section of the Town of Fort Myers Beach Land Development Code (LDC):
Accessory Apartments, with or without owner occupancy
If you do not intend to occupy the home, your lot will have to have enough density to accommodate that second dwelling unit.
For newly-constructed buildings, or buildings that have been substantially damaged or substantially improved, the Florida Building Code requires the lowest floor elevation to be at or above the base flood elevation plus an additional one foot of elevation (BFE + 1’). The base flood elevation can be located on the new flood maps, found at the flood information page below:
If you have further questions regarding the LDC, please contact firstname.lastname@example.org.